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Java Enterprise

Content available at: http://blogs.sun.com/arungupta/entry/oracle_at_jazoon_2010_java
on Jun 1, 2010
Content available at: http://blogs.sun.com/arungupta/entry/glassfish_3_1_one_pagers
on Jun 1, 2010
The problem at hand is that EclipseLink (great project lead by James Sutherland) does not use a query cache when dealing with ReadAll queries, i.e: all calls to getResultList() go to the database.  Some object-level caching is performed by avoiding construction of new objects based on the primary key values the database call returns.  EclipseLink compares the PK values returned by the...
on Jun 1, 2010
We are opening our embeddable Wiki engine "GWiki", which is written in Java with the Apache License 2.0 to all backend Java developer in the world. If you want to allow your customer to edit rich text fragments in your app, even their I18N files or mulitimedia content in the Wiki-way... try our GWiki - it rocks. Since Gwiki can be extended with macros written in Java...
on May 22, 2010
CDI (Contexts and Dependency Injection for the Java EE platform) is defined in JSR-299 and enhances support for dependency injection in Java EE 6. The more I use CDI the more I like it...However, I couldn't find a simple example of how to configure your application with CDI by reading configuration attributes from a file. Here is an example of how it can be done: Specifying injection points...
on May 18, 2010
Here is the second part of the CAFE fundamentals blog series. This time, I am explaining two important interfaces called Communication and UserProcedure with an example. If this is the first time you are hearing about SailFin CAFE, I recommend reading the CAFE fundamentals article and the blog on writing your first CAFE application. The core of this discussion is an example which shows...
on May 17, 2010
The Bean Validation specification went final around the same time that the Java EE 6 specifications went final. The Java Persistence 2.0 specification allows for Managed classes (entities, mapped superclasses and embeddable classes) to be configured with Bean Validation constraints. In this example we are going to use Eclipse Galileo which you can download and then install from here. You will...
on May 6, 2010
 I'v just published an integration module for using GridGain with Spring Batch. Using this module you can distribute Spring Batch processing inside a GridGain grid with the implementation of remote chunking. http://aloiscochard.blogspot.com/2010/04/spring-batch-integration-module...
on May 4, 2010
What I realized shortly after we put out Magnolia 4.3 is that while we tried to explain new multisite support for example in this screencast there are still plenty of grey areas and lot of confusion when people actually get to use the multisite support. And I think I wrote and talked about this topic earlier as well. Of course as with any new functionality, there are still...
on May 3, 2010
FESI Research Program Overview FESI is the Free and open source software Enterprise Solutions Institute. We are a research program designed to study tomorrow's internet technologies as a means to teach folks in the local workforce how to use technologies our customers will likely want to implement.  We also perform this research to prepare local engineers with the knowledge and...
on Apr 27, 2010

Java Desktop

OpenESB project initiated by Sun Microsystems to develop and deliver a high performance, and feature rich implementation of Java Business Integration (JBI) under an open source friendly license. Basic task of JBI implementations is connecting different type of resources and applications together in a standard and none intrusive way. Basic building blocks of an ESB includes the Bus which is a...
on May 24, 2010
Java EE Security refcard is available for download. This refcard covers Java EE 6 security and discuss how each application server supports the specs. The refcard covers authentication, authorization, and transport security in Web Application, EJB application and web services by introducing the concept and the related annotations and deployment descriptors which help us realize the concept....
on May 17, 2010
The Book in Details: Security was, is, and will be one of the most important aspects of Enterprise Applications and one of the most challenging areas for architects, developers, and administrators. It is mandatory for Java EE application developers to secure their enterprise applications using Glassfish security features. Learn to secure Java EE artifacts (like Servlets and EJB methods),...
on May 13, 2010
 Two talks at JavaOne this year: S313580 - "Swinglabs Dev Update" with Karl and Alex ... I hope guys will do most of the talking :D S314239 - "Building Content Management solutions based on Java Content Repository" together with Greg BTW for those wondering what is happening with the swinglabs.org, server have been recently moved around yet again. It is now in so...
on May 11, 2010

Java Web Services and XML

I decided to write down the answer for some questions which my book's readers email me or ask me via twitter in my weblog so everyone can benefit from the answers. Here is the answer to the first question which involves custom security realms. GlassFish supports 5 types of security realms out of the box which are sd follow: File Realm: Usefull for development and testing purposes. GlassFish...
on May 18, 2010
I wanted to describe an interesting problem I recently faced that involved the most excellent JAX-RS specification and its Jersey implementation.  The quick overview is that we wanted the output of our JAX-RS resource classes to be client-agnostic, but we also wanted the ability to insert a decorator of sorts in between the objects we were returning and the normal JAX-RS serialization/...
on Apr 28, 2010

Java Patterns

Content available at: http://blogs.sun.com/arungupta/entry/totd_133_jpa2_jpql_criteria
on May 6, 2010
On April 28th, 2010, we will be kicking off the first phase of FESI's research.  This where we set up the project, and start to get our hands dirty. Attached is the flyer we will use to promote FESI and what we're trying to accomplish.  Hopefully it will help us get the word out to the local community. Also as the kickoff, we'll be participating with a networking group that meets...
on Apr 27, 2010

Java User Groups

Last week's kickoff of FESI's research program went very well. There are a number of folks (>500) who are now following this blog on Java.net, and a number who have gotten involved.  While we wait for more folks, we'll be researching new technologies, the first being NOSQL databases.  If the kind of topics we're research interests you, please feel free to join the project;...
on May 5, 2010

Java Tools

  Learning GlassFish v3 Command Line Administration Interface (CLI) Terminals and consoles was one of the earliest types of communication interfaces between a system administrator and the system administration layer. Due to this long time presence,  command line administration consoles become one the most utilized administration channel for configuring different software ranging from database...
on Apr 27, 2010